The measurement of shift average exposures to oxides of nitrogen
Two sampling attachments* have been designed for measuring shift average concentrations of nitrogen dioxide and nitric oxide. These can be used with dust samplers so that NOx concentrations may be measurcd simultaneously with dust concentrations. The analysis procedure used is that of LEVAGGI et al(1973). Laboratory and field evaluations of the sampling attachments and the analysis proadure arc described. The preparation of standard mixtures of NO2 in air is also discussed and a comparison is made betwun NO2 in air mixtures produced by permeation tubes and cylinders of NO in nitrogen.
Publication Number: P/077
First Author: Dodgson J
Other Authors: Robertson A , Wood JD
Publisher: Oxford University Press,Oxford University, Oxford,Oxford
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